A communication interface and a device control, management and monitoring system are provided to enable the networking of and communication between a multiple devices operating under different protocols. The communication interface may act as a translator or protocol converter that reformats transmissions from one protocol to another based on protocol compatibility between the recipient and transmitting devices. The device control and monitoring system may store predefined rules that are triggered when specified conditions associated with the networked devices are detected. The rules may specify an action to take such as transmitting a discount offer to a user or turning off a light. According to one or more arrangements, the communication interface may act as an intermediary between the networked devices and the device control system so that the device control system is not required to understand or be compatible with the various other protocols used by the networked devices.
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13. A method comprising:
receiving, at a user premises device management system, device registration information for a first user premises device, a second user premises device, and a third user premises device;
assigning, by the user premises device management system, the first user premises device and the second user premises device a role comprising at least one of: a sender device configured to send signals to the user premises device management system and a receiver device configured to receive signals from the user premises device management system;
assigning, by the user premises device management system, device permissions for the third user premises device, wherein the device permissions specify whether an operation of the third user premises device is modifiable by other devices; and
receiving and registering a user specified rule defining an action to take upon detection of a condition associated with the first user premises device and a condition associated with the second user premises device, wherein the action comprises transmitting an instruction to the third user premises device different from the first user premises device and the second user premises device to modify the operation of the third user premises device, wherein the operation of the third user premises device to be modified is different from the condition associated with the first user premises device and the condition associated with the second user premises device.
1. A method comprising:
receiving, at a user premises device management system, a first signal from a first user premises device indicative of a condition associated with the first user premises device;
receiving, at the user premises device management system, a second signal from a second user premises device indicative of a condition associated with the second user premises device;
determining, by the user premises device management system, a rule based on the condition associated with the first user premises device and the condition associated with the second user premises device, wherein the rule associates the condition indicated in the first signal and the condition indicated in the second signal to a modification to an operation parameter of a third user premises device different from the first user premises device and the second user premises device, wherein the modification to the operation parameter of the third user premises device is different from the condition associated with the first user premises device and is different from the condition associated with the second user premises device;
accessing device permissions for the third user premises device, wherein the device permissions specify whether the operation parameter of the third user premises device is modifiable by other devices; and
generating and transmitting, by the user premises device management system, a third signal to the third user premises device, wherein the third signal comprises an instruction to modify the operation parameter of the third user premises device in accordance with the rule.
18. A method comprising:
receiving, at a communication interface system, a first signal from a first device, wherein the first signal is formatted according to a first protocol and indicates an operational change of the first device;
receiving, at a communication interface system, a second signal from a second device, wherein the second signal is formatted according to a second protocol and indicates an operational change of the second device;
converting the first signal into a third protocol different from the first protocol;
converting the second signal into the third protocol different from the second protocol;
transmitting, from the communication interface system, the first signal and the second signal to a device management system according to the third protocol, wherein the device management system is located remotely from a user premises and is configured to determine a modification to an operation of a user premises device, different from the first device and the second device, based on the operational change of the first device and the operational change of the second device, wherein the modification to the operation of the user premises device is different from the operational change associated with the first device and the operational change associated with the second device;
receiving a third signal from the device management system in response to the first signal and the second signal, the third signal comprising an instruction to perform the modification to the operation of the user premises device, wherein the third signal is transmitted based on accessed device permissions for the user premises device, the accessed device permissions specifying whether the modification to the operation of the user premises device is modifiable by other devices;
converting the third signal from the third protocol to a fourth protocol; and
transmitting the third signal to the user premises device according to the fourth protocol.
2. The method of
3. The method of
4. The method of
5. The method of
6. The method of
7. The method of
8. The method of
receiving, at the user premises device management system, registration information for the first user premises device; and
receiving, at the user premises device management system, information defining the rule based on the condition associated with the first user premises device.
9. The method of
10. The method of
11. The method of
14. The method of
assigning device permissions for the first user premises device and the second user premises device, wherein the device permissions specify at least one of device information that is accessible by other devices and device functionality that is accessible by other devices.
16. The method of
17. The method of
19. The method of
receiving, at the communication interface system, a fourth signal from the user premises device, the fourth signal communicated according to the fourth protocol;
converting the fourth signal into the third protocol; and
transmitting the fourth signal to the device management system in the third protocol.
20. The method of
transmitting device registration information for each of the first device, second device, and user premises device to the device management system; and
transmitting, to the device management system, a rule specifying the modification to the operation of the user premises device to be performed when the operational change of the first device is detected.
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Aspects of the disclosure relate to providing a communication interface for multiple devices. In particular, aspects describe an interface configured to facilitate communications with a variety of devices.
Today, device to human and vice versa interaction is performed through specialized interfaces written specifically for a particular device. This typically requires specific interfaces for each device when communicating between one device and multiple other devices. For example, in order to command or interact with 5 different devices, a user or device may require 5 different interfaces that are each programmed to be compatible with a corresponding device. This often results in devices not being able to communicate with one another due to a lack of interfacing capability and compatibility or having to have multiple interfaces to provide such compatibility.
The following presents a simplified summary of the disclosure in order to provide a basic understanding of some aspects. It is not intended to identify key or critical elements of the disclosure or to delineate the scope thereof. The following summary merely presents some concepts of the disclosure in a simplified form as a prelude to the more detailed description provided below.
According to one or more aspects, a communication interface is provided to facilitate communication between multiple similar and different devices. While each of the devices may operate under a different set of protocols, the communication interface may be configured to convert or reformat transmissions into a protocol that is compatible with a particular device. In one or more arrangements, the communication interface may allow several home or user devices to communicate with one another and to send and receive information to and from a device control system. For example, microwave status information may be sent to a set-top box that is configured to display the microwave information (e.g., if cooking is completed) on a display so that a user does not need to leave the display to check on the microwave. In another example, an indoor thermostat setting may be controlled through a user's cell phone or through the television.
According to another aspect, a device control system may perform a predefined action such as controlling the operation of devices based on detected conditions. For example, a device control system may automatically lower electronic blinds in a home upon detection that a movie has begun playing (or is about to begin playing) based on status information received from a DVD player or television. In another example, a device control system may be configured to automatically transmit discount offers to a user upon detecting a user's electricity usage being above average. The device control system may detect such conditions based on signals and information received from a variety of devices such as thermostats, doors, motion sensors, home appliances, display devices, mobile devices and the like. The signals from these devices may first be converted to a protocol compatible with the device control system by the communication interface. In one or more arrangements, the device control system may reside at a service provider's location.
According to yet another aspect, a communication interface may serve as a network interface, creating a network between devices that might otherwise not have the capability to communicate with one another. The communication interface may further collect device information and send an aggregation of the information to another device for processing.
The details of these and other embodiments of the present disclosure are set forth in the accompanying drawings and the description below. Other features and advantages of the invention will be apparent from the description and drawings, and from the claims.
The present disclosure is illustrated by way of example and not limited in the accompanying figures in which like reference numerals indicate similar elements and in which:
In the following description of the various embodiments, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration various embodiments in which the invention may be practiced. It is to be understood that other embodiments may be utilized and structural and functional modifications may be made without departing from the scope of the present disclosure.
According to one or more aspects, a service provider (e.g., of service provider network 105) may provide subscriber devices such as client devices 111a, 111b and/or 111e, and provide such devices with access to a local or wide area network such as the Internet. Thus, client devices 111a, 111b and/or 111e may request information from servers and devices including website server 113a and content server 113b through media distribution network 103 and service provider network 105. Service provider network 105 may comprise a single distribution system or may include multiple systems having servers 110. In one example, private media distribution network 103 may comprise a wireless, coaxial, cable and/or fiber optic (or a hybrid combination thereof) network configured to facilitate communication of data, messages, content, commands and other information between client devices 111 and service provider network 105. For example, network 103 may comprise optical connections between a service provider and an external unit (e.g., a signal amplifier) of a user location. Connections between the external unit and devices within the user location or premises may comprise coaxial wires or lines. The network may, alternatively, be configured such that the service provider transmits data over coaxial wiring to an amplifier or node and subsequently over fiber optic from the amplifier or node to individual user locations (e.g., if the node or amplifier is configured to service multiple user locations). Portions of a network may further comprise satellite connections or wireless connections (e.g., WiMAX, cellular, 802.11). For example, a content provider may receive content and other data through satellite communications and deliver it to users through the same, different or a combination of communication mediums. Alternatively or additionally, client devices 111 may have direct connections to other networks such as wide area network 107. Accordingly, client devices 111 may access website server 113a through a direct connection to wide area network 107 rather than through private media distribution network 103.
Client devices 111 may include a wide variety of systems including, for example, mobile communication device 111a, personal computer 111b, security system 111c, lighting systems/devices 111d, set-top boxes 111e, televisions 111f, thermostats 111g and the like. Each of client devices 111 may communicate using a different protocol. For example, mobile communication device 111a may send and receive data using TCP/IP while lighting systems/devices 111d may transmit status signals using Extensible Messaging and Presence Protocol (XMPP). In yet other examples, security system 111c may be configured to communicate using ZIGBEE protocol while thermostat 111g may be configured to communicate using SIP/SIMPLE (Session Initiation Protocol for Instant Messaging and Presence Leveraging Extensions). Other device control and communication protocols may include Ethernet, HOMEPLUG (IEEE P1901), Universal Powerline Bus (UPB), BLUETOOTH, IRDA (Infrared Data Association) and the like. Accordingly, in one or more arrangements, private media distribution network 103 may include a communication interface 109 that acts as a single interface and protocol conversion system for these wired and wireless client devices 111 that may use differing communication protocols. For example, communication interface 109 may be compatible with all of the various protocols used by client devices 111 and provide protocol conversion functionality so that client devices 111 may communicate with one another and with service provider network 105 without having to understand the other protocols.
Using the communication interface 109, a user may thus turn off lighting system 111d using mobile communication device 111a by sending an instruction from device 111a to communication interface 109, which may then convert the instruction to a protocol understood by lighting system 111d and forwarding the instruction to lighting system 111d. Moreover, communication interface 109 may be configured to identify the protocol in which communication and/or data is sent or received and to convert the data and information to a protocol compatible with one or more systems of service provider network 105. Such conversion may allow the one or more systems of service provider network 105 to monitor and control devices 111. For example, a service provider may automatically control lighting (e.g., dimming or brightening) in a user's home in response to determining that the user has ordered and/or begun playing a movie. Other examples and details of device control are described herein. Alternatively or additionally, data and information received from the service provider network 105 that is to be sent to one or more of devices 111 may be converted by communication interface 109 in accordance with one or more protocols understood by the one or more of devices 111. The above described configuration and network environment 100 thus allows for, according to one or more aspects, the remote control, management and monitoring of devices 111 by service provider network 105. For example, devices 111 may comprise a plurality of home and user devices such as home appliances, utility systems, consumer electronics and the like. In one or more arrangements, devices 111 may comprise customer premises equipment that are located within a single location associated with a customer or user. Customer premises may include an office, office building, areas within the office (e.g., floors), a user's home, rooms within the home and the like. The status and operation of such devices (e.g., an operation parameter of a device) may thus be controlled and monitored by service provider network 105 or the user for further home automation.
Operating as a gateway or communication interface such as interface 109 of
Device management system 215 may include components similar to those describe above with respect to computing system 200. Device management system 215 may be configured to modify the operation or an operation parameter of one or more device such as devices 213 upon detection of an event and/or based on a predefined rule. For example, upon detection of the temperature sensed by device 213b reaching a threshold temperature, device management system 215 may transmit a signal to device 213a to automatically lower window shades. The operation parameter in the foregoing example may include the height or position of the window shade. Other examples of operation parameters may include a volume level, an on/off/standby status or operating mode of a device, a temperature level, a time setting (e.g., for an alarm or programmable thermostat) and the like. Device management system 215 may be located at a service provider's location (e.g., service provider network 105 of
Further, in one or more arrangements, the functionality of computing system 200 and device management system 215 may be combined into a single device that is resident at either the service provider location or locally at a subscriber location.
According to one or more aspects, a device management system such as system 215 (
In step 305, the device management system may compare the information received in the signal with one or more predefined rules. The rules may be user-defined or may be defined by a service provider. In one example, a rule may specify that if light and temperature data indicate that a user is not at home, the device control system may automatically activate the security system if it is not already activated. In this example, the predefined rule may state that the action (e.g., turning on of the security system) is to be performed in response to determining that the lights are off, that the temperature is below 65° F., and that the security system is in an unarmed or deactivated state. Device management system may thus compare the information received from client devices such as a light sensor or a lamp, a temperature sensor or thermostat and a security system to the condition parameters of the rule. In step 310, the device management system may determine whether the rule has been triggered. In the above example, if the received device information indicates that the temperature is below 65° F., that the lights are off, and that the security system is unarmed, the rule may be triggered. If the rule has not been triggered, the device management system may continue to monitor the registered devices in step 315.
If, however, a rule has been triggered, the device management system may subsequently determine an action to take in step 320 and a user or device associated with the action to be taken in step 325. For example, using the security system activation example, the device management system may determine that the action to be taken is activation of a device and identify the device to include the security system. The actions and devices may be identified in the rule. In another example, a rule may specify automatically lowering a thermostat to 70° F. when a security system is activated and the lights are turned off. In yet other examples, a rule may provide instructions to offer a user a discount in television services if the user lowers his thermostat to 72° F. or lower or allows his utility usage information to be published to a third party. Such an incentive may be provided by a utilities company to decrease the amount of stress on the company's systems during extreme weather conditions. The rule may be triggered, for instance, if an interior thermostat reading at a home or other building is above 72° F. and an exterior weather gauge indicates a temperature of below 32° F. In such an example, the action to be taken may be identified as transmission of a notification including the incentive and the device may be identified as a cellular phone of the user.
In still another example, sound sensors may provide data to a device management system to indicate a location of occupants of a room or building (e.g., whether a person is upstairs or downstairs). A device management rule may specify an action to automatically transfer any video being watched on a downstairs video rendering device to an upstairs video rendering device upon detecting a change in the occupants' location from downstairs to upstairs. Alternatively or additionally, the device management rule may include an instruction to lower a thermostat for a lower level temperature control zone and to raise the thermostat in an upper level temperature control zone (e.g., during cold weather). Alternatively, the instructions may include raising a thermostat in the lower level temperature zone and lowering an upper level temperature zone (e.g., during warm weather).
Upon determining the action to be taken and the devices associated with those actions, the device management system may generate an appropriate instruction or message in step 330. The message and/or instructions may then be transmitted to an intended recipient device in step 335. The instruction or message may initially be formatted according to a protocol compatible with the device management system and in some instances, with the intended recipient device. However, in one or more arrangements, the protocol might not be compatible with the intended recipient device (e.g., a security system). In such cases, the message may be transmitted through an intermediary interface system such as communication interface 109 of
Once the device information has been collected, the registration system may allow a user to configure the device role and permissions in step 420. A device role may include a sender, a receiver or both. A sender includes a device that is configured to transmit information to other devices while a receiver device is configured to receive information from other devices. Thus, in some examples, a device might be designated a receiver if it is only able to receive data but not transmit data. Similarly, if a device is able to send data but not receive data, it may receive a role designation of a sender. Device permissions may include specification of device information or functionality that is allowed to be accessed by other devices. For example, permissions may include a designation of whether device A is allowed to access temperature information of the device and whether device B is permitted to activate a precipitation information collection sensor of the device. In one or more arrangements, device permissions may also include permissions for whether the device is allowed to transmit certain types of information.
In step 425, the registration system may further receive data access privilege or entitlement information for the device. Such information may identify both the information streams which the device is authorized to receive as well as the devices authorized to access the new device's information stream. One example of a data stream is a utilities information stream that distributes information regarding the utilities being used in a particular location and/or by a particular individual as determined by devices connected to the network. Devices may also be assigned roles such as listener or contributor or both in the stream. Thus, a cell phone used to monitor electricity usage may be authorized to access the information stream as a listener but not a contributor since the cell phone might not produce utilities usage information. A thermostat, on the other hand, may be authorized to access the information stream as a contributor but not a listener if the thermostat is not used to process utility information of other devices. In step 430, the registration system may store the registration information and configuration of the new device and transmit confirmation of such to a user and/or the new device.
Once the rule conditions have been defined, the device control system may further request and receive an action to be taken when the rule is triggered or satisfied in step 610. The action may further include identification of one or more devices and an operation parameter thereof that is to be modified and/or identification of a user to which a message is to be sent. In one example, the action may be defined as lowering the volume on television or other content rendering device in response to determining that a user's cell phone is located in a vicinity of the television (e.g., in the same house or building) and the user's cell phone is receiving a telephone call.
In step 615, the rule may be stored upon the various parameters being defined. The rule may be stored in association with the one or more devices to which it is applicable. Using such a storage mechanism, the device control system may look-up applicable rules based on the devices from which information is being received and/or to which information is to be transmitted. Accordingly, the device control system might not need to parse through all stored rules, even those that do not relate to the devices transmitting status information. In step 620, the device control system may begin monitoring the signal transmitted by devices in the network to determine if a rule has been triggered.
In some arrangements, a device control system such as system 215 of
In step 710, the communication interface may determine one or more second devices to which the transmission is to be delivered. This determination may be performed using address information in the transmission or, alternatively or additionally, data access privilege or entitlement information. For example, if devices 2, 3 and 4 are all authorized to access a service for monitoring the status of device 1, the destination devices for the transmission may be identified as devices 2, 3 and 4. In one or more configurations, determination of destination devices may also be based on a content of the transmission and/or permission settings. For example, if device 2 is authorized to access a service for monitoring the status of device 1, but permission settings of device 1 disallows the transmission of status information to device 2, device 2 might not be identified as a destination device for the transmission.
Once the destination devices have been identified, the communication interface may, in step 715, determine the protocols used or preferred by each of the identified devices. The communication interface may then convert the transmission into each of the determined protocols in step 720. In one example, the communication interface may extract the information communicated using ZIGBEE or IRDA communication protocol and reformat or re-packetize the data according to a second protocol such as SIP/SIMPLE. The converted signal may then be transmitted to their corresponding destination devices in step 725. As noted herein, the process described with respect to
The methods and features recited herein may further be implemented through any number of computer readable media (e.g., memory) that are able to store computer readable instructions. Examples of computer readable media that may be used include RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, DVD or other optical disk storage, magnetic cassettes, magnetic tape, magnetic storage and the like.
Additionally or alternatively, in at least some embodiments, the methods and features recited herein may be implemented through one or more integrated circuits (ICs). An integrated circuit may, for example, be a microprocessor that accesses programming instructions or other data stored in a read only memory (ROM). In some such embodiments, the ROM stores programming instructions that cause the IC to perform operations according to one or more of the methods described herein. In at least some other embodiments, one or more of the methods described herein are hardwired into an IC. In other words, the IC is in such cases an application specific integrated circuit (ASIC) having gates and other logic dedicated to the calculations and other operations described herein. In still other embodiments, the IC may perform some operations based on execution of programming instructions read from ROM or RAM, with other operations hardwired into gates and other logic of the IC. Further, the IC may output image data to a display buffer.
Although specific examples of carrying out the invention have been described, those skilled in the art will appreciate that there are numerous variations and permutations of the above-described systems and methods that are contained within the spirit and scope of the invention as set forth in the appended claims. Additionally, numerous other embodiments, modifications and variations within the scope and spirit of the appended claims will occur to persons of ordinary skill in the art from a review of this disclosure.
Dixon, Christopher, Poder, James
Patent | Priority | Assignee | Title |
10001790, | Feb 26 2013 | ADEMCO INC | Security system with integrated HVAC control |
10298452, | Jul 07 2010 | Comcast Interactive Media, LLC | Device communication, monitoring and control architecture and method |
10440130, | Jun 17 2014 | MAGNUM ENERGY SOLUTIONS, LLC | Thermostat and messaging device and methods thereof |
11057473, | Jul 24 2015 | Sharp Kabushiki Kaisha | Linkage system and device control server |
11067958, | Oct 19 2015 | Ademco Inc. | Method of smart scene management using big data pattern analysis |
11188839, | Nov 02 2007 | Ebay Inc. | Node bootstrapping in a social graph |
11263543, | Nov 02 2007 | Ebay Inc. | Node bootstrapping in a social graph |
11297168, | Dec 28 2016 | Dialight Corporation | Lighting automation network |
11398947, | Jul 07 2010 | Comcast Interactive Media, LLC | Device communication, monitoring and control architecture and method |
8972314, | Nov 02 2007 | Ebay Inc. | Interestingness recommendations in a computing advice facility |
9037531, | Nov 02 2007 | eBay | Inferring user preferences from an internet based social interactive construct |
9108110, | Mar 31 2011 | Sony Corporation | Information processing apparatus, information processing method, and program to allow conversation between a plurality of appliances and a user |
9159034, | Nov 02 2007 | eBay Inc | Geographically localized recommendations in a computing advice facility |
9245230, | Nov 02 2007 | Ebay Inc. | Inferring user preferences from an internet based social interactive construct |
9245231, | Nov 02 2007 | Ebay Inc. | Inferring user preferences from an internet based social interactive construct |
9251471, | Nov 02 2007 | Ebay Inc. | Inferring user preferences from an internet based social interactive construct |
9349099, | Nov 02 2007 | Ebay Inc. | Inferring user preferences from an internet based social interactive construct |
9355361, | Nov 02 2007 | Ebay Inc. | Inferring user preferences from an internet based social interactive construct |
9443199, | Nov 02 2007 | Ebay Inc. | Interestingness recommendations in a computing advice facility |
9754308, | Nov 02 2007 | Ebay Inc. | Inferring user preferences from an internet based social interactive construct |
Patent | Priority | Assignee | Title |
5051720, | Nov 13 1989 | SECURE TELECOM, INC | Remote control system using power line of remote site |
5061916, | May 29 1990 | TAC, LLC | Event driven remote graphical reporting of building automation system parameters |
6085236, | Jan 06 1998 | Sony Corporation | Home audio video network with device control modules for incorporating legacy devices |
6278697, | Jul 29 1997 | Apple Inc | Method and apparatus for processing multi-protocol communications |
6389466, | Apr 22 1998 | U S PHILIPS CORPORATION | Management of functionality in a consumer electronics system |
6546419, | May 07 1998 | SAMSUNG ELECTRONICS CO , LTD , A KOREAN CORP | Method and apparatus for user and device command and control in a network |
6892230, | Jun 11 1999 | Rovi Technologies Corporation | Dynamic self-configuration for ad hoc peer networking using mark-up language formated description messages |
7142128, | Sep 18 2000 | Sony Corporation | Portable information device, access device for portable information device, home network system, and home network access method |
7876722, | May 31 2006 | Honeywell International Inc.; Honeywell International Inc | System and method for wireless communication between wired field devices and control system components |
20030035523, | |||
20030101459, | |||
20040139210, | |||
20060020690, | |||
20060227946, | |||
20060256813, | |||
20070124786, | |||
20070162586, | |||
20080103608, | |||
20080104272, | |||
20080288618, | |||
20090086940, | |||
20090150921, | |||
20090197524, | |||
20090207893, | |||
20100013607, | |||
20100217837, | |||
20110046799, | |||
JP2001251312, | |||
JP2006178976, | |||
JP2010183204, |
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